參數(shù)資料
型號(hào): ADT7482ARMZ-U2
廠商: ON SEMICONDUCTOR
元件分類: 溫度/濕度傳感器
英文描述: DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 2.5Cel, SQUARE, SURFACE MOUNT
封裝: LEAD FREE, MO-187-BA, MSOP-10
文件頁(yè)數(shù): 7/24頁(yè)
文件大?。?/td> 335K
代理商: ADT7482ARMZ-U2
ADT7482
Rev. 1 | Page 15 of 24 | www.onsemi.com
Table 14. Sample Offset Register Codes
Offset Value
0x11/0×34
0x12/0x35
128°C
1000 0000
00 00 0000
4°C
1111 1100
00 00 0000
1°C
1111 1111
00 000000
0.25°C
1111 1111
11 00 0000
0°C
0000 0000
00 00 0000
+0.25°C
0000 0000
01 00 0000
+1°C
0000 0001
00 00 0000
+4°C
0000 0100
00 00 0000
+127.75°C
0111 1111
11 00 0000
ONE-SHOT REGISTER
The one-shot register initiates a conversion and comparison
cycle when the ADT7482 is in standby mode, after which the
device returns to standby. Writing to the one-shot register
address (0×0F) causes the ADT7482 to perform a conversion
and comparison on both the local and the remote temperature
channels. This is not a data register as such, and it is the write
operation to Address 0×0F that causes the one-shot conversion.
The data written to this address is irrelevant and is not stored.
CONSECUTIVE ALERT REGISTER
The value written to this register determines how many out-of-
limit measurements must occur before an ALERT is generated.
The default value is that one out-of-limit measurement generates
an ALERT. The maximum value that can be chosen is 4. This
register allows some filtering of the output. This is particularly
useful at the fastest three conversion rates, where no averaging
takes place. This register address is 0x22. For more information,
refer to Table 15.
Table 15. Consecutive ALERT Register Bit
Register Value1
Amount of Out-of-Limit
Measurements Required
yza× 000x
1
yza× 001x
2
yza× 011x
3
yza× 111x
4
1 Notes:
y = SMBus SCL timeout bit. Default = 0. See the Serial Bus Interface section
for more information.
z = SMBus SDA timeout bit. Default = 0. See the Serial Bus Interface section
for more information.
a = Mask Internal ALERTs.
x = Don’t care bit.
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